What is a Service-Oriented Model (SOM)?

Service-Oriented Model (SOM) is an architectural pattern where business logic is organized as loosely coupled, interacting services.

Key principles of SOM:

• Loose Coupling: Services are independent of each other and communicate through standardized interfaces. Changes in the internal implementation of one service minimally affect others.
• Reusability: Services are designed to be used in various business processes and applications.
• Autonomy: Services have their own resources and manage their execution logic.
• Contract: Each service has a clearly defined interface (contract) describing how to interact with it (parameters, return values, message format).

Advantages of SOM:

• Flexibility: Easily modify, replace, or add services without rebuilding the entire system.
• Scalability: Services can scale independently of each other.
• Increased Reliability: A failure in one service does not necessarily lead to the failure of the entire system.
• Development Speed: Different teams can work on different services in parallel.

An example of SOM implementation is Service-Oriented Architecture (SOA).